There's also a second force, called electron degeneracy pressure.

还有第二种力，叫做并压。

But a white dwarf can't: it's ruled by electron degeneracy pressure.

它受并压控制。

When this happens, yet another effect comes into play: neutron degeneracy.

当这种情况发生时，另一种效应就开始发挥作了：中并。

It takes a stellar core at least about three times the mass of the Sun to overcome neutron degeneracy pressure.

恒核量至少是太阳三倍，才能克服中并压。

They occur when a white dwarf increases in mass until electron degeneracy pressure can no longer sustain it against its own gravity.

当白矮量不断增加，直到并压无法在自身引力作下维持其量时，就会形成这种行。

But even electron degeneracy fails to stop the collapse if the core has a mass more than about 1.4 times the mass of the Sun.

但是，如果核量超过太阳量1.4倍，那么即使是并也无法阻止其坍塌。

By the time this electron degeneracy pressure balances the core's immense gravity, the core is only about the size of Earth, 1% the original width of the Sun.

当并压平衡了核心巨大引力时，它就只有地球那么大，太阳原始宽度1%。